AccessViolationException when calling SceneView.ImageOverlays.Clear()

AndrewWilcockson — Fri, 15 Mar 2024 02:18:28 GMT

.NET Maps SDK version 200.3.0

I have a fairly complex application that uses multiple ImageOverlays to render video frames on a 3D SceneView.

When I want to disable the display of the video, I call SceneView.ImageOverlays.Clear()

If there is only 1 or 2 ImageOverlays then this will usually work.

If there are 4 ImageOverlays then this will 100% throw the following exception:

Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at RuntimeCoreNet.GeneratedWrappers.CoreGeoView.CoreRT_GeoView_pulse(IntPtr thisHandle, IntPtr* outErrorHandle)
at RuntimeCoreNet.GeneratedWrappers.CoreGeoView.Pulse()
at Esri.ArcGISRuntime.UI.Controls.GeoView.Esri.ArcGISRuntime.Internal.IDxSurfaceSource.Pulse()
at Esri.ArcGISRuntime.Internal.HostedSurfaceElement.CompositionTarget_Rendering(Object sender, EventArgs e)
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at Esri.ArcGISRuntime.Internal.HostedSurfaceElement.SurfaceBackgroundUiWorker(Object arg)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

I am assuming that there is some non thread safe processing that is occurring to update the map and it is not handling the ImageOverlays collection being cleared while this is happening?

Any help or advice would be greatly appreciated.

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()

PreetiMaske — Fri, 15 Mar 2024 23:54:17 GMT

Is your app x64 or x86?

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()

AndrewWilcockson — Mon, 18 Mar 2024 00:41:41 GMT

x64

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()

PreetiMaske — Thu, 01 Aug 2024 17:19:33 GMT

Good news! ArcGIS Maps SDK version 200.5.0 was just released today and this issue is fixed with this release.

Thank you for bringing this one to our attention!

topic AccessViolationException when calling SceneView.ImageOverlays.Clear() in .NET Maps SDK Questions

AccessViolationException when calling SceneView.ImageOverlays.Clear()

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()

Re: AccessViolationException when calling SceneView.ImageOverlays.Clear()